DEDEPU Scuba Tank 2.3L Mini Scuba Tanks Diving Tank 20-35 Minutes Scuba Air Tank DOT Certification Lung Tank D1A Black

["Scuba tank structure: It consists of an aluminum cylinder, a primary valve, a medium-pressure hose, a secondary valve, and sealing rings for various parts. Simply assemble these four parts and ensure the sealing ring is intact before inflating.","Scuba tank body: Crafted entirely from aircraft-grade aluminum, this one-piece casting is lightweight, compact, and durable. All diving cylinders are DOT certified to ensure product quality and safety. The safe pressure within the cylinder is 3000 PSI; do not exceed this during inflation.","Gas Safety: The filling port is equipped with a high-precision filter to prevent impurities and dust from entering the bottle. A safety switch is located on the bottle head; please remember to close it after diving to prevent accidental leakage. A constant pressure device on the bottle head allows gas to flow more smoothly into your mouth.","Instructions for use: Before use, please test the product on land by pressing the top of the secondary valve or breathing through the mouthpiece to confirm that the airflow is normal. Once fully inflated, this product can provide breathing support underwater for 10 minutes.","Inflation: You can inflate this small cylinder using a standard 12L gas cylinder, or you can choose to use a high-pressure air compressor. Please note that this package does not include any inflation equipment or inflation adapter."]